Distributive Property and Combining like terms

Distributive property and combining like terms #1(watch until 13:11 minutes)
Distributive property and combining like terms #2

Simplifying expressions (first distribute, next combine like terms, last substitute)
Evaluating Algebraic Expressions 1 - basic; positive numbers only
Evaluating Algebraic Expressions 2--includes replacing variables with negative numbers, using order of operations, and simplifying


Translating algebraic phrases
Video #1
Video #2
Video #3